./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1a7472923aa95b61749a468b52dfc65e03dead5bf647c94f71a6e156dc586ae --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:32,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:32,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:33:32,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:32,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:32,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:32,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:32,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:32,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:32,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:32,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:32,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:32,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:32,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:32,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:32,472 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:32,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:32,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:32,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:32,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:32,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:32,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:32,476 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:33:32,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:33:32,477 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:32,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:32,478 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:32,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:32,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:32,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:32,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:32,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:32,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:32,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:32,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:32,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:32,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:32,482 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:32,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:32,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:32,484 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:32,484 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1a7472923aa95b61749a468b52dfc65e03dead5bf647c94f71a6e156dc586ae [2023-11-19 07:33:32,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:32,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:32,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:32,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:32,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:32,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i [2023-11-19 07:33:36,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:36,336 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:36,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/sv-benchmarks/c/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i [2023-11-19 07:33:36,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/data/b74669a4d/955441a840724bc9bf11225e91119247/FLAG63b98a344 [2023-11-19 07:33:36,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/data/b74669a4d/955441a840724bc9bf11225e91119247 [2023-11-19 07:33:36,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:36,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:36,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:36,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:36,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:36,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:36" (1/1) ... [2023-11-19 07:33:36,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1a291e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:36, skipping insertion in model container [2023-11-19 07:33:36,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:36" (1/1) ... [2023-11-19 07:33:36,504 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:36,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:37,004 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:37,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:37,155 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:37,156 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:37,164 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:37,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37 WrapperNode [2023-11-19 07:33:37,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:37,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:37,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:37,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:37,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,253 INFO L138 Inliner]: procedures = 175, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 123 [2023-11-19 07:33:37,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:37,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:37,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:37,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:37,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:37,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:37,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:37,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:37,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (1/1) ... [2023-11-19 07:33:37,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:37,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:37,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:37,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:33:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:33:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:33:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:33:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:33:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:33:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:33:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:33:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:33:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:33:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:37,510 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:33:37,678 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:37,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:38,092 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:38,394 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:38,395 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:33:38,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:38 BoogieIcfgContainer [2023-11-19 07:33:38,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:38,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:38,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:38,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:38,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:36" (1/3) ... [2023-11-19 07:33:38,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730f5a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:38, skipping insertion in model container [2023-11-19 07:33:38,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:37" (2/3) ... [2023-11-19 07:33:38,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730f5a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:38, skipping insertion in model container [2023-11-19 07:33:38,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:38" (3/3) ... [2023-11-19 07:33:38,421 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_power.oepc-thin000_power.oepc.i [2023-11-19 07:33:38,433 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:33:38,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:38,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:33:38,463 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:33:38,570 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:33:38,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 238 flow [2023-11-19 07:33:38,707 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2023-11-19 07:33:38,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:38,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 113 events. 3/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-11-19 07:33:38,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 238 flow [2023-11-19 07:33:38,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 113 transitions, 232 flow [2023-11-19 07:33:38,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:33:38,742 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 113 transitions, 232 flow [2023-11-19 07:33:38,745 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 113 transitions, 232 flow [2023-11-19 07:33:38,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 113 transitions, 232 flow [2023-11-19 07:33:38,784 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2023-11-19 07:33:38,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:38,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 113 events. 3/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-11-19 07:33:38,789 INFO L119 LiptonReduction]: Number of co-enabled transitions 1548 [2023-11-19 07:33:47,652 INFO L134 LiptonReduction]: Checked pairs total: 4167 [2023-11-19 07:33:47,653 INFO L136 LiptonReduction]: Total number of compositions: 112 [2023-11-19 07:33:47,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:47,678 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4df39ebb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:47,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 07:33:47,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:33:47,685 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:33:47,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:47,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:33:47,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:33:47,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 07:33:47,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 679899372, now seen corresponding path program 1 times [2023-11-19 07:33:47,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:47,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368164685] [2023-11-19 07:33:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:47,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:48,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:48,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368164685] [2023-11-19 07:33:48,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368164685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:48,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:33:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894185877] [2023-11-19 07:33:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:48,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:48,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:48,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:48,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:48,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 227 [2023-11-19 07:33:48,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:48,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:33:48,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 227 [2023-11-19 07:33:48,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:33:48,440 INFO L124 PetriNetUnfolderBase]: 90/174 cut-off events. [2023-11-19 07:33:48,440 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:33:48,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 174 events. 90/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 562 event pairs, 35 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 349. Up to 102 conditions per place. [2023-11-19 07:33:48,444 INFO L140 encePairwiseOnDemand]: 220/227 looper letters, 23 selfloop transitions, 3 changer transitions 2/29 dead transitions. [2023-11-19 07:33:48,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 123 flow [2023-11-19 07:33:48,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:48,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:33:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-11-19 07:33:48,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47430249632892807 [2023-11-19 07:33:48,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-11-19 07:33:48,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-11-19 07:33:48,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:33:48,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-11-19 07:33:48,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:48,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:48,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:48,497 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 42 flow. Second operand 3 states and 323 transitions. [2023-11-19 07:33:48,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 123 flow [2023-11-19 07:33:48,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:33:48,503 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2023-11-19 07:33:48,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-11-19 07:33:48,511 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-11-19 07:33:48,511 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2023-11-19 07:33:48,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:48,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:33:48,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:48,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:33:48,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 07:33:48,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:48,514 INFO L85 PathProgramCache]: Analyzing trace with hash -455926907, now seen corresponding path program 1 times [2023-11-19 07:33:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:48,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105105116] [2023-11-19 07:33:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:48,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105105116] [2023-11-19 07:33:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105105116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:48,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:48,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010537240] [2023-11-19 07:33:48,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:33:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:33:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:33:48,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 227 [2023-11-19 07:33:48,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:48,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:33:48,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 227 [2023-11-19 07:33:48,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:33:49,001 INFO L124 PetriNetUnfolderBase]: 77/149 cut-off events. [2023-11-19 07:33:49,001 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-19 07:33:49,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 149 events. 77/149 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 449 event pairs, 35 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 359. Up to 76 conditions per place. [2023-11-19 07:33:49,005 INFO L140 encePairwiseOnDemand]: 222/227 looper letters, 21 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2023-11-19 07:33:49,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 117 flow [2023-11-19 07:33:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:33:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:33:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2023-11-19 07:33:49,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45594713656387664 [2023-11-19 07:33:49,010 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 414 transitions. [2023-11-19 07:33:49,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 414 transitions. [2023-11-19 07:33:49,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:33:49,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 414 transitions. [2023-11-19 07:33:49,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,020 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,020 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 4 states and 414 transitions. [2023-11-19 07:33:49,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 117 flow [2023-11-19 07:33:49,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:33:49,023 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 52 flow [2023-11-19 07:33:49,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-11-19 07:33:49,024 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-11-19 07:33:49,025 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 52 flow [2023-11-19 07:33:49,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:33:49,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:49,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:33:49,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 07:33:49,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash -455926906, now seen corresponding path program 1 times [2023-11-19 07:33:49,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:49,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308011377] [2023-11-19 07:33:49,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:49,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:49,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:49,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308011377] [2023-11-19 07:33:49,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308011377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:49,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:49,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55562164] [2023-11-19 07:33:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:49,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:33:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:33:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:33:49,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 227 [2023-11-19 07:33:49,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:33:49,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 227 [2023-11-19 07:33:49,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:33:49,322 INFO L124 PetriNetUnfolderBase]: 71/135 cut-off events. [2023-11-19 07:33:49,322 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-11-19 07:33:49,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 135 events. 71/135 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 399 event pairs, 35 based on Foata normal form. 8/142 useless extension candidates. Maximal degree in co-relation 323. Up to 72 conditions per place. [2023-11-19 07:33:49,324 INFO L140 encePairwiseOnDemand]: 222/227 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-11-19 07:33:49,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 108 flow [2023-11-19 07:33:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:33:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:33:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2023-11-19 07:33:49,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45374449339207046 [2023-11-19 07:33:49,328 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 412 transitions. [2023-11-19 07:33:49,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 412 transitions. [2023-11-19 07:33:49,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:33:49,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 412 transitions. [2023-11-19 07:33:49,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,338 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,338 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 52 flow. Second operand 4 states and 412 transitions. [2023-11-19 07:33:49,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 108 flow [2023-11-19 07:33:49,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 101 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:33:49,340 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-11-19 07:33:49,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-11-19 07:33:49,342 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2023-11-19 07:33:49,342 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-11-19 07:33:49,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:49,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-19 07:33:49,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-19 07:33:49,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-19 07:33:49,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-19 07:33:49,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-19 07:33:49,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-19 07:33:49,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-19 07:33:49,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-19 07:33:49,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-19 07:33:49,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-19 07:33:49,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:33:49,351 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:33:49,357 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:33:49,358 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:33:49,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:33:49 BasicIcfg [2023-11-19 07:33:49,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:33:49,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:33:49,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:33:49,365 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:33:49,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:38" (3/4) ... [2023-11-19 07:33:49,368 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:33:49,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:33:49,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:33:49,378 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 07:33:49,379 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:33:49,379 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:33:49,379 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:33:49,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:33:49,509 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:33:49,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:33:49,510 INFO L158 Benchmark]: Toolchain (without parser) took 13101.00ms. Allocated memory was 144.7MB in the beginning and 224.4MB in the end (delta: 79.7MB). Free memory was 97.0MB in the beginning and 81.0MB in the end (delta: 16.0MB). Peak memory consumption was 97.5MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,510 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 71.4MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:33:49,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 754.50ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 73.8MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.65ms. Allocated memory is still 144.7MB. Free memory was 73.8MB in the beginning and 71.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,512 INFO L158 Benchmark]: Boogie Preprocessor took 88.84ms. Allocated memory is still 144.7MB. Free memory was 71.3MB in the beginning and 69.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,513 INFO L158 Benchmark]: RCFGBuilder took 1058.47ms. Allocated memory is still 144.7MB. Free memory was 69.0MB in the beginning and 53.8MB in the end (delta: 15.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,513 INFO L158 Benchmark]: TraceAbstraction took 10954.35ms. Allocated memory was 144.7MB in the beginning and 224.4MB in the end (delta: 79.7MB). Free memory was 52.6MB in the beginning and 86.3MB in the end (delta: -33.7MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,514 INFO L158 Benchmark]: Witness Printer took 144.96ms. Allocated memory is still 224.4MB. Free memory was 86.3MB in the beginning and 81.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:33:49,516 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 71.4MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 754.50ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 73.8MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.65ms. Allocated memory is still 144.7MB. Free memory was 73.8MB in the beginning and 71.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.84ms. Allocated memory is still 144.7MB. Free memory was 71.3MB in the beginning and 69.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1058.47ms. Allocated memory is still 144.7MB. Free memory was 69.0MB in the beginning and 53.8MB in the end (delta: 15.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10954.35ms. Allocated memory was 144.7MB in the beginning and 224.4MB in the end (delta: 79.7MB). Free memory was 52.6MB in the beginning and 86.3MB in the end (delta: -33.7MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Witness Printer took 144.96ms. Allocated memory is still 224.4MB. Free memory was 86.3MB in the beginning and 81.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 117 PlacesBefore, 25 PlacesAfterwards, 113 TransitionsBefore, 18 TransitionsAfterwards, 1548 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 112 TotalNumberOfCompositions, 4167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2370, independent: 2186, independent conditional: 0, independent unconditional: 2186, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 913, independent: 874, independent conditional: 0, independent unconditional: 874, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2370, independent: 1312, independent conditional: 0, independent unconditional: 1312, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 913, unknown conditional: 0, unknown unconditional: 913] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 135 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:33:49,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6086d0f5-1292-4dbf-96ea-2dce882dd0e4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE